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介绍了一种改进的制备压电厚膜的 sol- gel新方法 ,通过添加聚乙烯吡咯烷酮 (poly vinyl pyrrolidone,PVP)来抑制厚膜中裂纹的产生 .文中讨论了最大无裂纹膜厚与 PVP摩尔比及热处理的关系 ,并给出了 BST的 SEM显微照片 .
An improved sol-gel method for preparing piezoelectric thick films is introduced, in which cracks are suppressed by adding poly vinyl pyrrolidone (PVP). The maximum crack-free film thickness and PVP molar And heat treatment, and gives the BST SEM micrographs.